Asset server implementation. Again one of these "plumbing" releases, where no real functionality has been introduced, but ground work has been made, enabling the asset server, and preparing the sim server to query the asset server.

Introduced an "IPlugin" interface, which plugins can inherit from.

OpenSim/Framework/Data.MySQL/MySQLAssetData.cs

@@ -0,0 +1,112 @@
+using System;
+using System.Collections.Generic;
+using MySql.Data.MySqlClient;
+
+using libsecondlife;
+using OpenSim.Framework.Console;
+using OpenSim.Framework.Interfaces;
+using OpenSim.Framework.Types;
+
+namespace OpenSim.Framework.Data.MySQL
+{
+    class MySQLAssetData : IAssetProvider   
+    {
+        MySQLManager _dbConnection;
+        #region IAssetProvider Members
+
+        private void UpgradeAssetsTable(string oldVersion)
+        {
+            // null as the version, indicates that the table didn't exist
+            if (oldVersion == null)
+            {
+                MainLog.Instance.Notice("ASSETS", "Creating new database tables");
+                _dbConnection.ExecuteResourceSql("CreateAssetsTable.sql");
+                return;
+            }
+        }
+
+        /// <summary>
+        /// Ensure that the assets related tables exists and are at the latest version
+        /// </summary>
+        private void TestTables()
+        {
+
+            Dictionary<string, string> tableList = new Dictionary<string, string>();
+
+            tableList["assets"] = null;
+            _dbConnection.GetTableVersion(tableList);
+
+            UpgradeAssetsTable(tableList["assets"]);
+
+        }
+
+        public AssetBase FetchAsset(LLUUID uuid)
+        {
+            throw new Exception("The method or operation is not implemented.");
+        }
+
+        public void CreateAsset(AssetBase asset)
+        {
+            MySqlCommand cmd = new MySqlCommand("REPLACE INTO assets(id, name, description, assetType, invType, local, temporary, data)" +
+                                                             "VALUES(?id, ?name, ?description, ?assetType, ?invType, ?local, ?temporary, ?data)", _dbConnection.Connection);
+            MySqlParameter p = cmd.Parameters.Add("?id", MySqlDbType.Binary, 16);
+            p.Value = asset.FullID.GetBytes();
+            cmd.Parameters.AddWithValue("?name", asset.Name);
+            cmd.Parameters.AddWithValue("?description", asset.Description);
+            cmd.Parameters.AddWithValue("?assetType", asset.Type);
+            cmd.Parameters.AddWithValue("?invType", asset.InvType);
+            cmd.Parameters.AddWithValue("?local", asset.Local);
+            cmd.Parameters.AddWithValue("?temporary", asset.Temporary);
+            cmd.Parameters.AddWithValue("?data", asset.Data);
+            cmd.ExecuteNonQuery();
+        }
+
+        public void UpdateAsset(AssetBase asset)
+        {
+            CreateAsset(asset);
+        }
+
+        public bool ExistsAsset(LLUUID uuid)
+        {
+            throw new Exception("The method or operation is not implemented.");
+        }
+
+        /// <summary>
+        /// All writes are immediately commited to the database, so this is a no-op
+        /// </summary>
+        public void CommitAssets()
+        {
+        }
+
+        #endregion
+
+        #region IPlugin Members
+
+        public void Initialise()
+        {
+            IniFile GridDataMySqlFile = new IniFile("mysql_connection.ini");
+            string hostname = GridDataMySqlFile.ParseFileReadValue("hostname");
+            string database = GridDataMySqlFile.ParseFileReadValue("database");
+            string username = GridDataMySqlFile.ParseFileReadValue("username");
+            string password = GridDataMySqlFile.ParseFileReadValue("password");
+            string pooling = GridDataMySqlFile.ParseFileReadValue("pooling");
+            string port = GridDataMySqlFile.ParseFileReadValue("port");
+
+            _dbConnection = new MySQLManager(hostname, database, username, password, pooling, port);
+
+            TestTables();
+        }
+
+        public string Version
+        {
+            get { return _dbConnection.getVersion(); } 
+        }
+
+        public string Name
+        {
+            get { return "MySQL Asset storage engine"; }
+        }
+
+        #endregion
+    }
+}